The innate tendency of human cells to self-destruct, the clocklike changes in some hormones, and the decline of effectiveness of the human immune system are all factors that lend support to ____ theories of aging.
A) wear-and-tear
B) programmed
C) error
D) diathesis

Question

The innate tendency of human cells to self-destruct, the clocklike changes in some hormones, and the decline of effectiveness of the human immune system are all factors that lend support to ____ theories of aging.​
A) ​wear-and-tear
B) ​programmed
C) ​error
D) ​diathesis

Quizplus · Accepted Answer

The clocklike changes in hormones suggest a programmed aspect to aging, which supports programmed aging theories. The innate tendency of human cells to self-destruct and the decline in effectiveness of the immune system are also consistent with programmed aging theories. Wear-and-tear theories suggest that aging is a result of accumulated damage to the body over time rather than programmed changes, and error theories suggest that aging is due to genetic mutations and other errors that accumulate over time. Diathesis refers to a genetic predisposition to a disorder, which is not directly related to aging theories.

The Innate Tendency of Human Cells to Self-Destruct, the Clocklike